Blower for musical instruments.



PATENTED NOV. 13, 1906.

I. H.8PENGER. BLOWER FOR MUSICAL INSTRUMENT.

APPLICATION FILED APR.3,1905.

Hts

I-NNECTlEUT.

SPENCER, 0F HARTFORD, CUNNECTIGHT ASSIGNUR 'llfl THE ORGAN PGWER(JQMPANY, 0F HARTFQRD, CGNNECTlUUT, A QURPQRATION 0F.

SLGWER FQQ MUSEGAL lNSTRUililENTS:

peeification of Letters Patent.

Patented Nov. 18,.

Application filed April 3,1905 Serial lie. 253,699.

"1'0 a 'L whom it may concern:

in county of Hartford and Stateor Connecticut, have invented a new andHI'OEOVQQ Blower for Musical l-nst urollowing is a specifical: vinvention relates to the class of devices or producing a current of air,the improved evice ing the subject-matter of this apit)! using moreespecially applicable tor creating a current for use in musicalinstruments, although it may he hund applica ole is; use in connectionwith other devices and is therefore not limited especially to use inconnection with a musical instrument.

object of my invention is to provide a blower that shall he freefiom theobjections present in prior devices resulting from the noise created inthe operation of the blower; and a further object is to provide a devicewhich may he set up or installed with cornparative readiness and ease;and a further object of the invention is to provide a device theadvantages hereinhefore noted and in which access to the motor may bethese objects may be attained is illustrated in the accompanyingdrawings, in which-i- Figure l is a view in central verticallongitudinal section oi a blower embodying my invention. Fig. 2 is aview in crosswise section through the device shown in Fig. 1 on a planepassing through the deliverypipe and looking toward the right. ig. 3 isa view in crosswise section through the device shown in Fig. l on aplane passing through the structure oetween the dividingwallsand afan-disk, looking toward the left, and'with the upper part of thefan-disk broken away. Fig. 4 is a detail view showing the bearing forone end of the shaft.

In the accompanying drawin s the numeral 1 denotes an outer case, an '2an inner case. These casings are preferably formed of sheet metal andare supported by rings 3, which may be formed integral with either ofthe casings or secured thereto in any convenlent manner.

in constructing casings for blowers for musi'cal instruments prior to myinvention it has been comm.

on practice to d de the casing longitudii Ly; an objection is present insuch construction from the that the current oi r generated by the fansand 110wing circur rentially around he casing and across e seam formedhy the oint create considerable noise. It is desir in devices s thatnoise shall e prevented. nd by repeated cuts that v e casing is ividedcircumrerentially insteae oi. longitudinally that this noise isprevened. therefore form the casing in ded circumferentially, as shownin Fig".- l or the drawings, and interfaces a ens er sectionssound-insulating material a between the outer and imer casings. Heads 55'5 are provided at each end of the casing, these heads beingsecured'together and to the casing and the sections of the casino beingsecured together, as by means of rods 7 passing through the heads andalong the outer surface of the casing l and secured, as by means ofthumhscrews 8, fixed to the screw-threaded ends of Dowel-pins 9 aresecured to the the rods. rings 3 for the purpose of holding them inalinement. The head 5 is provided with a cover 18, hinged at 11 to thesupport 12 and secured, as by a thumb-screw 13. The head 6 is providedwith a cross-bar is, forming a bearin for one end of the shaft 15, anopening 16 cing formed through the head for the admission of air.Supports 17 are provided for sustaining the blower as a whole.

A main'division-wall 18 extends across the casing, dividing themotor-chamber 1.9 from the aircompartments 20. This main division-wallhas an opening 21, closed by a cap 22. This map is loosely supported onthe shaft and has a lining 28 of felt on that face next to the wall 18.ported and is held in place by the air-pressure within the air-chamber.Thus it forms what might well be termed a floating bushing covering theopening 21 between the motor-chamber 19 and air-compartments 20, alwaysadjusting itself with the shaft without liability of cramping orbinding.

A motor 24 is located in the motor-chamber l9 and is connected with theshaft 15 by .lt is loosely sup' structing the universal hearing as shown111- 'Fig. 1 of the drawings it will be seen that the a universal joint25. This shaftis supported at one end inthe bar 14 in a universalbearing 26.

In setting up the casing it often happensshaft will readily accommodateitself'to the position of the motor and that the latter may be'moved toa considerable extent-without interfering with the properoperation oftheshaft, and hence when the blower is once setup itneed not-be taken-downby reasonof the motorhaving been moved from itsproper' position with theshaft in alinement;

Partitions 27 divide the air-chamber up into compartments 20, in whichare located fan-disks 28,- to which are secured fans orvanes 29. Theedges of-the fans revolve in close-proximity to the partitions 27, theair passing through the openings 30 in these partitlons.

Shields 31 are locatedin the air-compartments in any desired number,these being clearly shown-in Fig. 3 of the drawings. An outlet 32 leadsfrom the inner air-compartment, this outlet orpipe being located in aline tangential to the wall of the circular aircompartment.

The air enters through the opening in the cover 6 at each side of thecross-bar 14 and passes into each of the succeeding chambers, theressure being ralsed in each of the succee ing chambers. The shields 31revent'a circular motion of-th'e air in all 0 the aircompartments exceptthe innermost, and in this chamber circular motion is allowed, and owingto the location of-the outlet-pipe the air freely passes out of saidpipe to a suitable reservoir or pressure chamber or direct to themusical instrument, as the case may be.

The air in-each of the succeeding compartments from the inlet 16 israised-in pressure, being higher than in the next preceding compartment.l have shown herein the outlet 32, extending from the innermostcompartment; but it will be obvious that outlets may be made from any ofthe com artments and airsupplied'inthis way under iiferent ressures, asmay be required, from the same lower.-

What T claim as my invention, and desire to secure by Letters Patent,is-- 1. in a blower for musical instruments or the like, including acasing composed'of'sec eaaaro connected with the motor, and fans mounted6 5 on the shaft and within the casing.

2. In a blower for musical instruments or the like, a casing having amotor-chamber; and compartments for air under pressure and divided fromthe motor-chamber, a shaft extending from the motor into theair-comartments, a floating self-adjusting bushing intermediate themotor and air-compartments, and fans-secured to said shaft and locatedwithin the air-compartments. I

3; In a blower for musical instruments or the like, a casing composed ofinner and outer concentric tube-sections with means for-hold mg saidsections in alinement', amotorlocated within said casing, a shaftconnected with the motor and supported at its opposite endin a universalbearing, said bearing supported in thecasing, and fans secured to saidshaft;

4. In a blower for musical instruments or the like, a-casing composed ofinner and outer concentric tube-sections with meansforholding saidsections in alinement, a motor se-- cured therein, a-motor-shaft, ashaft sup orted at one end in a universal-bearing, sai :beaningsupported in the casing, a-universal 'oint connecting said shaft'withthe motor-s aft, and fans secured to said shaft.

5. In a blower formusical instruments, or the like, ablower-casinghavinga motors chamber and air-compartments, a-motorlocated' within themotor-chamber, a motor shaft, a shaft extending from the motorshaftthrough the air-compartments, supported'at its outer endinthemotoncasing and connected with said motor-shaft, afloat ing disksupported on the-shaft and} closing the opening between themotor-chamber and air-compartments, and fans secured to said Shaft;

6. in a blower for musical instruments or the like, a shell havingamotor-chamber and aircompartments, amotor located within themotor-chamber, a shaft connectedtwith the motor by a universal joint andsupported at its opposite endin a universal bearing, a floatingself-adjusting cap supported by the shaft-to close the opening throughwhich the shaft extends from the motor-chamber, an outlet extendingtangentially from the wall of the innermost air compartment, and fanssecured to the shaft and located in each of the compartments.

7 In a blower for nnusical instruments or the like, a-casing ditidedinto a number: of air-compartments, a motor located within the casingand having a shaft extendin throui said'air-compartments, fans locate insec of the compartments, and an outlet from a number of'saidcompartments where by air under different pressures may be obtained fromsaidshell.

8. in a blower for musical instruments or re q the like, a shellformed.in sections divided cated in each ofthe air-compartments, and I0v ciroumferentially and separated into a num: outlets from a number ofsaid chambers ber of air-compartments and a motor-chamwhereby airunderdifferent pressures may blelarhaflmotiglr located Isail? chamber, 3 beobtained vfrom said shell.

8 a exi connecte wit t e motor an I extending through theair-compartments, a IRA SPENCER floatingself-adjustingcapforclos'theopenl Witnesses:

ing from an air-compartment into t e motor- ARTHUR B. JENKINS,

chamber, fans secured to said shaft and lo- L. E. BERKQVITOH.

